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Dynamic phase control of reflectarray antenna based on non-linear dielectric material

Ismail, Muhammad Yusof and Mohd Zain, Ahmad Faizal and Abdullah, Mohamad Faiz Liew and Amin , Muhammad (2011) Dynamic phase control of reflectarray antenna based on non-linear dielectric material. Other thesis, Universiti Tun Hussein Onn Malaysia.

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This research work provides an extensive analysis for performance optimization of passive and reconfigurable infinite reflectarray antennas based on non-linear dielectric materials. The objective of this work was to design and analyze infinite reflectarrays printed above liquid crystals in X-band frequency range for optimization of reflection loss, phase range and bandwidth performance. Theoretical investigations carried out using CST Microwave Studio and Ansoft HFSS have been validated by waveguide scattering parameter measurements. Analysis demonstrated an achievable 20% bandwidth of 540MHz with a low Figure of Merit of 0.209"MHz which provided a trade-off between bandwidth performance and linear static phase range of reflectarray antennas. The results demonstrated a frequency tunability of up to 1700MHz with a dynamic phase range of up to 314" and a maximum volume reduction of 24.36% at lOGHz using the proposed reflectarray configurations.

Item Type: Thesis (Other)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Depositing User: Normajihan Abd. Rahman
Date Deposited: 16 May 2013 07:25
Last Modified: 16 May 2013 07:25
URI: http://eprints.uthm.edu.my/id/eprint/3858
Statistic Details: View Download Statistic

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